brostrom



2 SheetsSheet 1.

O. P. BROSTRUM.

(No Model.)

OIL BURNER.

No. 476,445. Patented June 7,1892.

w mm 7 7 n1: mm PETERS c0. morn-Luna, msnmcn-on, 0.1:.

(No Model.) 2 Sheets--Sheet 2.

C. P. BROSTROM. OIL BURNER.

No. 476,445 Patented June 7, 1892.

UNITED STATES PATENT OEFIcE.

CARL F. BROSTRCM, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO IVILLIAMS. MINTY, OF SAME PLACE.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 476,445, dated June 7,1892.

Application filed February 5, 1891. Serial No. 380,312. (No model.)

To all whom it may concern.-

Be it known that I, CARL F. Bnosrnoln, a citizen of the United States,residing at Chicago, Cook county, Illinois, have invented a new anduseful Improvement in Oil-Burners, of which the following is aspecification.

My invention consists of aburner designed particularly for stoves andranges adapted for burning petroleum, gasoline, kerosene, or otherhydrocarbon oils, in which the oil is allowed-to enter through afeed-pipe and is vaporized by the heat of the burner concentrated in agrate or radiator and air drawn in by the draft produced by the flameand thoroughly mixed with the vaporized oil to give a perfectcombustion.

It further consists of details of construction hereinafter more fullydescribed, and particularly pointed out in the claims.

Figure 1 is a plan view of a stove with a part of the top broken away,showing my burner. Fig. 2 is a side elevation of the stove, a part ofthe side being broken away, showing the burner on a middle section view.Fig. 3 is a plan view of the burner, the top damper being removed. Fig.4: is a plan view of the pan of the burner. Fig. 5 is a side elevationof the same. Fig. 6 is a top view of the grate. Fig. 7 is a bottom viewof the same. Fig. 8 is a top view of the air-nozzle partially brokenaway, showing the perforations. Fig. 9 is a bottom view of the same.

A represents the stove; B, the burner-pan; C, the feed-pipe; D, thereservoir; E, the feedcock; F, the air-nozzle; G, the grate; H, thedamper, and I the chimney-flue.

The operation of the burner is as follows: The feed-cock is opened andthe oil allowed to run into the bottom of the pan of the burner andthere it is ignited, when it burns slowly for a time until the burnerbecomes heated. XVhen the heat reaches a certain point, the oil isvaporized and the gases begin to burn, producing a much more intenseflame than the burning of the oil. Then by regulating the supply of oilthe amount of gas generated is regulated as well as the heat of theflame. The flame passing up the flue produces a draft which draws in theair through the passage under the burner in the fire-box, as indicatedby the arrows, and

through the perforated nozzle F, the draft through the fire-box beingentirely out off by the burner, leaving only the passage through F open.This nozzle is spread out and its under face perforated so as todistribute the supply of air pretty generally all over the grate. Thegrate is made up of a number of upright partitions with air-spacesbetween them and broken by circulatingpassages which connect oneair-space with another. This construction gives a large radiatingsurfaceand also a system of air-passages which tend to thoroughly mix the gasescoming up from below and the air being fed in above. There are alsochannels in the bottom of the grate to allow the oil as it runs in tospread out over the bottom of the pan and be more rapidly vaporized. Thegrate rests upon the bottom of the pan in order to keep it hot andassist in vaporizing the oil. The oil enters just at the upper edge ofthe grate in the back and trickles down into the pan before much of itis vaporized, because this portion of the burner is comparatively cool,the air being drawn in over it. The combustion in the burnerisconcentrated in the grate, which when the burner is in full blastbecomes intensely heated and glows like a bed of burning coals, keepingthe burner-pan hot and rapidly vaporizing the oil as it runs into thebottom of it. Then as the gases rise through the bars of the grate theyare heated and mixed with the air from above and thoroughly consumed.The air-nozzle is extended out to a point in the middle in order todivide the flame directing it onto the lids of the stove at each side.The damper H is pivotedin the middle and may be turned to direct theflame to either side of the stove, as desired, or, if preferred, may beremoved entirely.

The grate, pan, and air-nozzle are separate parts fitting into oneanother and may be separately renewed when burned out.

I prefer to burn refined petroleum in my 9 burner; but other hydrocarbonoils may be used or any other oils that can be readily vaporized by theheat of the burner.

I have shown my burner as applied to a stove or range; but it may beused for other purposes, provided there is a fine sufficient forproducing the necessary draft to draw in the supply of air.

I do not wish to limit myself to the exact construction shown anddescribed, as the same may be slightly varied without departing from thespirit of my invention.

That I claim, and desire to secure by Letters Patent, is-

1. The herein-described oil-burner, consisting of the combination of theburner-pan, the grate located within said pan, the oil-feed by which theoil is fed below said grate, the airfeed by which the air is fed abovesaid grate, and the chimney-flue, all substantially as shown anddescribed.

2. The herein-described oil-burner, consisting of the combination of theburner-pan, the grate resting upon said pan, the oil-feed, the air-feed,and the chimney-flue, all substantially as shown and described.

3. The herein-described oil-burner, consisting of the combination of theburner-pan, the grate, the oil-feed, the air-feed by which the airenters in close proximity to the oil, and the chimney-flue, allsubstantially as shown and described.

4. The herein-described oil-burner, consisting of the combination of theburner-pan, the

grate, the oil-feed, the air-feed having a wide nozzle by which the airis spread over the grate, and the chimney-flue, all substantially asshown and described.

5. The herein-described oil-burner, consisting of the combination of thebu rner-pan, the grate having upright partitions and air-passagesthrough them and channels along the bottom of the grate, the oil-feed,the air-feed, and the chimneyflue, all substantially as shown anddescribed.

6. The herein-described oil-burner, consisting of the combination of theburner-pan, the grate, the oil-feed, the airfeed having a wide nozzlewith a projecting portion across the middle of the grate, the pivoteddamper, and the chimney-flue, substantially as shown and described.

7. The herein-described oil-burner, consisting of the combination of theburner-pan, the grate, the oil-feed feeding the oil below the grate, theair-feed feeding the air above the grate, and the chimney-flue, allsubstantially as shown and described.

CARL F. BRos'rRoM.

Vitnesses:

L. V. LEMOYNE, W. S. MINTY.

